diff --git a/package-lock.json b/package-lock.json
index ac63700..240b1c2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "merge-nb",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "merge-nb",
-      "version": "0.0.2",
+      "version": "0.0.3",
       "dependencies": {
         "@vscode/markdown-it-katex": "^1.1.2",
         "dompurify": "^3.3.1",
@@ -20,8 +20,8 @@
         "@types/markdown-it": "^14.1.2",
         "@types/mocha": "^10.0.10",
         "@types/node": "25.x",
-        "@types/react": "^18.3.27",
-        "@types/react-dom": "^18.3.7",
+        "@types/react": "^19.2.13",
+        "@types/react-dom": "^19.2.3",
         "@types/vscode": "^1.108.1",
         "@types/ws": "^8.18.1",
         "@vscode/test-cli": "^0.0.12",
@@ -31,8 +31,8 @@
         "mocha": "^11.7.5",
         "module-alias": "^2.3.3",
         "npm-run-all": "^4.1.5",
-        "react": "^18.3.1",
-        "react-dom": "^18.3.1",
+        "react": "^19.2.4",
+        "react-dom": "^19.2.4",
         "ts-node": "^10.9.2",
         "typescript": "^5.9.3",
         "typescript-eslint": "^8.53.1"
@@ -934,32 +934,24 @@
         "undici-types": "~7.16.0"
       }
     },
-    "node_modules/@types/prop-types": {
-      "version": "15.7.15",
-      "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.15.tgz",
-      "integrity": "sha512-F6bEyamV9jKGAFBEmlQnesRPGOQqS2+Uwi0Em15xenOxHaf2hv6L8YCVn3rPdPJOiJfPiCnLIRyvwVaqMY3MIw==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/@types/react": {
-      "version": "18.3.27",
-      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.27.tgz",
-      "integrity": "sha512-cisd7gxkzjBKU2GgdYrTdtQx1SORymWyaAFhaxQPK9bYO9ot3Y5OikQRvY0VYQtvwjeQnizCINJAenh/V7MK2w==",
+      "version": "19.2.13",
+      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.13.tgz",
+      "integrity": "sha512-KkiJeU6VbYbUOp5ITMIc7kBfqlYkKA5KhEHVrGMmUUMt7NeaZg65ojdPk+FtNrBAOXNVM5QM72jnADjM+XVRAQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@types/prop-types": "*",
         "csstype": "^3.2.2"
       }
     },
     "node_modules/@types/react-dom": {
-      "version": "18.3.7",
-      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-18.3.7.tgz",
-      "integrity": "sha512-MEe3UeoENYVFXzoXEWsvcpg6ZvlrFNlOQ7EOsvhI3CfAXwzPfO8Qwuxd40nepsYKqyyVQnTdEfv68q91yLcKrQ==",
+      "version": "19.2.3",
+      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
+      "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
-        "@types/react": "^18.0.0"
+        "@types/react": "^19.2.0"
       }
     },
     "node_modules/@types/trusted-types": {
@@ -3563,13 +3555,6 @@
         "@pkgjs/parseargs": "^0.11.0"
       }
     },
-    "node_modules/js-tokens": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
-      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/js-yaml": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
@@ -3748,19 +3733,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/loose-envify": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
-      "integrity": "sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "js-tokens": "^3.0.0 || ^4.0.0"
-      },
-      "bin": {
-        "loose-envify": "cli.js"
-      }
-    },
     "node_modules/lru-cache": {
       "version": "10.4.3",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-10.4.3.tgz",
@@ -4695,30 +4667,26 @@
       }
     },
     "node_modules/react": {
-      "version": "18.3.1",
-      "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
-      "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
+      "version": "19.2.4",
+      "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",
+      "integrity": "sha512-9nfp2hYpCwOjAN+8TZFGhtWEwgvWHXqESH8qT89AT/lWklpLON22Lc8pEtnpsZz7VmawabSU0gCjnj8aC0euHQ==",
       "dev": true,
       "license": "MIT",
-      "dependencies": {
-        "loose-envify": "^1.1.0"
-      },
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/react-dom": {
-      "version": "18.3.1",
-      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-18.3.1.tgz",
-      "integrity": "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==",
+      "version": "19.2.4",
+      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.2.4.tgz",
+      "integrity": "sha512-AXJdLo8kgMbimY95O2aKQqsz2iWi9jMgKJhRBAxECE4IFxfcazB2LmzloIoibJI3C12IlY20+KFaLv+71bUJeQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "loose-envify": "^1.1.0",
-        "scheduler": "^0.23.2"
+        "scheduler": "^0.27.0"
       },
       "peerDependencies": {
-        "react": "^18.3.1"
+        "react": "^19.2.4"
       }
     },
     "node_modules/read-pkg": {
@@ -4944,14 +4912,11 @@
       }
     },
     "node_modules/scheduler": {
-      "version": "0.23.2",
-      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
-      "integrity": "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ==",
+      "version": "0.27.0",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.27.0.tgz",
+      "integrity": "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==",
       "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "loose-envify": "^1.1.0"
-      }
+      "license": "MIT"
     },
     "node_modules/semver": {
       "version": "7.7.3",
diff --git a/package.json b/package.json
index 01a8607..15cc789 100644
--- a/package.json
+++ b/package.json
@@ -121,8 +121,8 @@
     "@types/markdown-it": "^14.1.2",
     "@types/mocha": "^10.0.10",
     "@types/node": "25.x",
-    "@types/react": "^18.3.27",
-    "@types/react-dom": "^18.3.7",
+    "@types/react-dom": "^19.2.3",
+    "@types/react": "^19.2.13",
     "@types/vscode": "^1.108.1",
     "@types/ws": "^8.18.1",
     "@vscode/test-cli": "^0.0.12",
@@ -132,8 +132,8 @@
     "mocha": "^11.7.5",
     "module-alias": "^2.3.3",
     "npm-run-all": "^4.1.5",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react-dom": "^19.2.4",
+    "react": "^19.2.4",
     "ts-node": "^10.9.2",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.53.1"